Bug 1246290 - Add a reftest for the apz.disable_for_scroll_linked_effects pref. r=botond
MozReview-Commit-ID: H5FYIiVCi8p
new file mode 100644
--- /dev/null
+++ b/layout/reftests/async-scrolling/disable-apz-for-sle-pages-ref.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+ <head>
+ <title>Check that the apz.disable_for_sle_pages pref behaves as expected</title>
+ <script>
+ addEventListener('load', function() {
+ window.scrollTo(0, 100);
+ setTimeout(done, 0);
+ }, false);
+
+ function done() {
+ document.documentElement.classList.remove('reftest-wait');
+ }
+ </script>
+ </head>
+ <body style="height: 5000px; background-image:url(repeatable-diagonal-gradient.png);">
+ <div id="fake-fixed" style="position: absolute; top: 100px; left: 100px; width: 100px; height: 100px; background-color: green"></div>
+ </body>
+</html>
new file mode 100644
--- /dev/null
+++ b/layout/reftests/async-scrolling/disable-apz-for-sle-pages.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html class="reftest-wait" reftest-async-scroll
+ reftest-async-scroll-y="200">
+ <head>
+ <title>Check that the apz.disable_for_sle_pages pref behaves as expected</title>
+ <script>
+ // Upon load, this page scrolls to (0, 100). This triggers a scroll event,
+ // which runs the scroll listener below. The scroll listener updates the
+ // position of the div to simulate position:fixed using a scroll-linked
+ // effect. The scroll-linked effect detector should then report that the
+ // document contains such an effect, which will disable APZ on the page.
+ // That in turn will cause the reftest-async-scroll-y to get ignored, and
+ // that's what the reftest checks for.
+
+ addEventListener('scroll', function() {
+ document.getElementById('fake-fixed').style.top = window.scrollY + "px";
+ }, false);
+
+ addEventListener('load', function() {
+ window.scrollTo(0, 100);
+ setTimeout(done, 0);
+ }, false);
+
+ function done() {
+ document.documentElement.classList.remove('reftest-wait');
+ }
+ </script>
+ </head>
+ <body style="height: 5000px; background-image:url(repeatable-diagonal-gradient.png);">
+ <div id="fake-fixed" style="position: absolute; top: 0; left: 100px; width: 100px; height: 100px; background-color: green"></div>
+ </body>
+</html>
--- a/layout/reftests/async-scrolling/reftest.list
+++ b/layout/reftests/async-scrolling/reftest.list
@@ -34,16 +34,17 @@ skip-if(!asyncPan) == position-sticky-tr
skip-if(!asyncPan) == offscreen-prerendered-active-opacity.html offscreen-prerendered-active-opacity-ref.html
fuzzy-if(Android,6,4) skip-if(!asyncPan) == offscreen-clipped-blendmode-1.html offscreen-clipped-blendmode-ref.html
fuzzy-if(Android,6,4) skip-if(!asyncPan) == offscreen-clipped-blendmode-2.html offscreen-clipped-blendmode-ref.html
fuzzy-if(Android,6,4) skip == offscreen-clipped-blendmode-3.html offscreen-clipped-blendmode-ref.html # bug 1251588 - wrong AGR on mix-blend-mode item
fuzzy-if(Android,6,4) skip-if(!asyncPan) == offscreen-clipped-blendmode-4.html offscreen-clipped-blendmode-ref.html
fuzzy-if(Android,7,4) skip-if(!asyncPan) == perspective-scrolling-1.html perspective-scrolling-1-ref.html
fuzzy-if(Android,7,4) skip-if(!asyncPan) == perspective-scrolling-2.html perspective-scrolling-2-ref.html
fuzzy-if(Android,7,4) skip-if(!asyncPan) == perspective-scrolling-3.html perspective-scrolling-3-ref.html
+pref(apz.disable_for_scroll_linked_effects,true) skip-if(!asyncPan) == disable-apz-for-sle-pages.html disable-apz-for-sle-pages-ref.html
# for the following tests, we want to disable the low-precision buffer
# as it will expand the displayport beyond what the test specifies in
# its reftest-displayport attributes, and interfere with where we expect
# checkerboarding to occur
default-preferences pref(layers.low-precision-buffer,false)
skip-if(!asyncPan) == checkerboard-1.html checkerboard-1-ref.html
skip-if(!asyncPan) == checkerboard-2.html checkerboard-2-ref.html
